I agree with you that it's a problem but I'm not sure that cutting people off from services is a good solution, I think this is an issue that needs to be tackled from a young age in schools along with some other subjects...
I mean some schools have home economics lessons etc.. but there is probably some time spent there on stuff like how to bake a cake etc.. that could be better spent on some other more useful "how to do life" type lessons.
Essentially I don't think these need fall under IT or computer science education any more than learning how credit cards and mortgages work should fall under maths lessons or guidance about diet falls under biology - obviously, the basics needed to understand these things do but the practical issues as they occur in everyday life could be packaged together into a set of lessons for dealing with the adult world.
"Life skills" could cover things like credit cards, mortgages, payday loans and the dangers of high-interest rates, how credit ratings work etc... Could do with stuff about healthy eating/diet, getting enough sleep, doing exercise. The online stuff doesn't need to just be about internet security, looking after passwords, 2FA, but could go into being careful about what you post on social media, how it could impact future employer's background checks, warnings about sending nudes etc... Even basic presentation/public speaking skills too. Maybe also interview technique, how to write a CV & cover letter etc..
The most noticable difference I've noticed in the younger generations is a basic lack of street wisdom. I was a director in a company that took on a couple of graduates for a job in sales. We only needed one salesperson, but the financial director who interviewed them, couldn't decide which one was likely to be the better candidate, so he employed the pair of them with the promise to the other directors that unless they both turned out to be brilliant, we wouldn't be spending money on two salaries for the long-term. They were both given short-term contracts, subject to review and possible renewal after a year.
Neither were whiz kids on computers, but they understood the basics. The brighter of the two had a BA, the other felt superior because he had an MA. They both knew only one of them was likely to be in employment at the end of the year; and in their different ways tried to undermine the other. The one with the MA turned out to be quite arrogant, but pretty useless and his time was likely to be up when his performance review came round, but this was pre-empted when he called in sick one day and a secretary discovered his girlfriend had posted photos that evening of the pair of them having a fun time at the seaside.
As the Technical Director, I wasn't particularly concerned which of them were retained, so long as they didn't give me any grief. Jobs in sales are rarely known for their longevity, but staff lower down the pecking order don't like being treated like **** by arrogant upstarts. The secretary hated him and decided to check out his social media activities. She was streetwise, even though she'd left school at 16 without a qualification to her name. To be honest, had it been down to me, I'd have promoted her to the sales job, because she was streetwise, which is the fundamental quality needed to get people to part with theior money. It also happens to be the quality needed to trap and hang ******** merchants by their own petard.
Do I blame that lad for having a day at the seaside when he pretended he was too ill to be at work? Not really, since it was the sort of thing I did when I was courting my wife. The difference was that I wasn't stupid enough to make enemies, nor was ever pompous about my educational attainment to the extent I imagined that qualifications alone would provide me with secure employment; and the last bleedin' thing I'd do is to advertise what I'm up to on Facebook of all places.
